Draw a ER diagram for airport or airport related stuff do,nt copy it from internet use ur own idea sample diagram is attached
Draw a ER diagram for airport or airport related stuff do,nt copy it from internet use ur own idea sample diagram is attached
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Q. Draw a ER diagram for airport or airport related stuff do,nt copy it from internet use ur own idea sample diagram is attached
![Alternative Notations for ER Diagrams
• There are many alternative diagrammatic notations for displaying ER
diagrams.
we introduce the Unified Modeling Language (UML) notation for class
diagrams, which has been proposed as a standard for conceptual object
modeling.
Figure 7.15
ER diagrams for the company schema, with structural con-
straints specified using (min, max) notation and role names.
Fname
Minit
Lname
Bdate
Name
Address
Salary
Ssn
Sex
Locations
WORKS_FOR
(4,N)
(1,1)
Employee
Number
Name
Department
Start_date Number_of_employees
EMPLOYEE
DEPARTMENT
Department
Managed
(0,1)
Manager
(0,N) Controlling
Department
(1,1)
MANAGES
CONTROLS
Hours
(1,N)
Worker
Controlled
(0,N)
Supervisor
(0,1)
Supervisee
(1,1) Project
Project
(1,N)
WORKS_ON
PROJECT
SUPERVISION
(0,N)
Employee
Name
Location
Number
DEPENDENTS_OF
(1,1) || Dependent
DEPEND ENT
Name
Sex
Birth_date
Relationship](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F095ef37d-a4cc-4b2b-9b9f-13ddffdfc50a%2F01d1bcf5-86cb-4c7d-b4d4-84d04f768ecc%2Fbwazqg_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Alternative Notations for ER Diagrams
• There are many alternative diagrammatic notations for displaying ER
diagrams.
we introduce the Unified Modeling Language (UML) notation for class
diagrams, which has been proposed as a standard for conceptual object
modeling.
Figure 7.15
ER diagrams for the company schema, with structural con-
straints specified using (min, max) notation and role names.
Fname
Minit
Lname
Bdate
Name
Address
Salary
Ssn
Sex
Locations
WORKS_FOR
(4,N)
(1,1)
Employee
Number
Name
Department
Start_date Number_of_employees
EMPLOYEE
DEPARTMENT
Department
Managed
(0,1)
Manager
(0,N) Controlling
Department
(1,1)
MANAGES
CONTROLS
Hours
(1,N)
Worker
Controlled
(0,N)
Supervisor
(0,1)
Supervisee
(1,1) Project
Project
(1,N)
WORKS_ON
PROJECT
SUPERVISION
(0,N)
Employee
Name
Location
Number
DEPENDENTS_OF
(1,1) || Dependent
DEPEND ENT
Name
Sex
Birth_date
Relationship
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